H,W = map(int, input().split())
MAP = [[1]*W for _ in range(H)]
if H>1 and W>1 and H%2==1 and W%2==1:
    for i in range(max(H,W)):
        MAP[min(i,H-1)][min(i,W-1)]=0
elif H%2==1:
    MAP[H-1]=[0]*W
elif W%2==1:
    for i in range(H):
        MAP[i][W-1]=0

ans = 0
for map in MAP:
    ans+=sum(map)

print(ans)
for map in MAP:
    print(*map)